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What does the construct x = x || y mean?

...this example, there is no way to set flagA to false. It would be a better idea to explicitly check whether flagA is undefined, like that: function goodFunction(/* boolean */flagA) { flagA = typeof flagA !== "undefined" ? flagA : true; console.log("flagA is set to " + (flagA ? "true" : "false")...
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Why does int i = 1024 * 1024 * 1024 * 1024 compile without error?

... I have no idea why the second variant produces no error. The behaviour that you suggest -- that is, the production of diagnostic message when a computation produces a value that is larger than the largest value that can be stored in ...
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HTML5 record audio to file

...sn't seem to work properly on windows 8, the audio playback is silent. Any ideas? – Mark Murphy Aug 14 '13 at 22:34 2 ...
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How to hide image broken Icon using only CSS/HTML?

... Somehow I completely missed this idea, when it is so obvious in retrospect! Unfortunately, I don't think the object tag can gracefully handle responsive images like we're starting to see on the img.srcset property :( – Windgazer ...
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Getting and removing the first character of a string

...ng(x, 1, 1) ## [1] "h" substring(x, 2) ## [1] "ello stackoverflow" The idea of having a pop method that both returns a value and has a side effect of updating the data stored in x is very much a concept from object-oriented programming. So rather than defining a pop function to operate on chara...
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How do I create a constant in Python?

... @MatthewSchinckel The idea is not to write MY_CONSTANT = MY_CONSTANT(), but to use MY_CONSTANT() as the constant. Of course, this. But this is fine and is very much in line with the python principle "We are all adults here" - i.e. the developer wi...
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MIME type warning in chrome for png images

... to 4 and I encounter this problem in Cassini with the same png files. Any ideas? – MattB Oct 3 '12 at 17:10 1 ...
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For each row return the column name of the largest value

... Hi @user1412. Thanks for your interesting question. I don't have any idea right now other than using the which.min in something that would look like: DT[, MIN := colnames(.SD)[apply(.SD,1,which.min)]] or DT[, MIN2 := colnames(.SD)[which.min(.SD)], by = 1:nrow(DT)] on the dummy data above. This...
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Dependency Injection vs Factory Pattern

...e dependency. If you looked at the method as a black box you would have no idea it required a car. Example #2 - This is a little better because now we know we need a car since we pass in a car factory. But this time we are passing too much since all the method actually needs is a car. We are passin...
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Is there a way to escape a CDATA end token in xml?

...</script> and my javascript includes just that sequence! I like the idea of splitting into multiple CDATA sections ... – NickZoic Mar 23 '12 at 1:11 ...